heat fans with his own spin on the r&b classic, "if i ever fall in love," with an assist by dwyane wade. the performance may have been off-key. but the event was on-point, raising scholarship money for underprivileged teens. >> great. >> to be honest, you go into the studio together. >>> finally, everybody, we encourage you to hug somebody. get over here, stephanopoulos. it's now scientifically proven that hugging lowers blood pressure and reduces stress and improves your memory. it's a new study out of austria. it says the hormone -- they spelled it phonetically. the hormone is replaced in your blood when you hold someone close. it has to be someone you know. according to the study, someone you know and trust. hugging a stranger could have the opposite effect. >> like walk through airports. >> don't go up and randomly hug someone. that could be dangerous to your health. yeah. hug it out. scottie, get over here. >> i want a hug. >> come here. i know. hug it out. you feel better? >> much better. >> okay, good. >>> how about a little pop quiz? >> do it. >> everybody, this morning, we ask